Protective system



Nov. 9, 1937. H. J. ROBINSON ET AL 2,098,309

PROTECTIVE SYSTEM Filed July 21, 1954 4 Sheets-Sheet 1 II II II a : @L'KT clfibznsam. Efformsan Nov. 9, 1937.

H. J. ROBINSON ET AL PROTECTIVE SYSTEM 4 Sheeis-Sheet 2 Filed July 21, 1934 jrweia/fors RimzQ, 1937. H. J. ROBINSON ET AL 2,993,309

PROTECTIVE SYSTEM Filed July 21, 1954 4 Sheeis-Sheet s Nov. 9, 1937. H. .J. ROBINSON ET A 2,998,309

PROTECTIVE SYSTEM Filed July 21 1934 4 Sheets-Sheet 4 r' a 7 g lnveniim Ear/ y J Pobinsow.

Patented Nov. 9, 1937 STATES PATENT OFFICE.

PROTECTIVE SYSTEM tion of New York Applicationjl'uly 21, 1934,-SlialN0. 736,298

Claims.

This invention pertains to protective systems for banks, safe deposit vaults, etc. and to apparatus and appliances forming parts of such a system, and is intended primarily to afford i protection against robberies during the working hours of the bank or other place in' which the system may be installed.

While protective systems have been devised and are commonly in use, which aiford reason- 10' ably good protection against the depredations of burglars during thenightor at other times when the bank is closed, little real protection has been provided for during the working periods of the bank, and many robberies have occurred during such working periods and after the vaults have been opened. I

The time controlled vault locking mechanisms which are in common use are usually set to allow the vaults to be opened at the beginning, of the working day, and in some cases robberies have been timed to take place immediately following the unlocking of the vaults and when few customers might be expected to be in the bank. In such day-time robberies, the question of time is an all important factor, and if the intended robbery could be delayed even for a few minutes, such delay in many cases would be enough to foil the robbers intentions. Ordinarily the intended robbers give no opportunity for closing -.the vault or other safety receptacle doors, and

even if closed and locked, robbers may force the bank employees to open the doors unless the time mechanism be in operation so that immediate unlocking of the door is an impossibility. In order that protective apparatus be practically efiicient, it should be of such character that employees will not hesitate to set it into action at the least suspicion of intended robbery, but the usual time locking mechanism employed in 40 bank vaults is set to run for a long predetere mined period so that if once set into operation it is a long time before the doors may be opened again. Thus even if it were possible quickly to restore the vault doors to time lock control, employees would be loathe to take this step until absolutely assured that a robbery was intended,

and this assurance might come too late to prevent appropriate action.

We are aware that certain delayed action-locks 50. have heretofore been proposed, designed to prevent access to the contents of a vault or locker for a predetermined period after the main time lock has run down, and also that proposals have been made to actuate locking members for lock 55. er doors or. the like from a remote point." How- (Cl. 109-1) ever, such prior delayed action time mecha-- nisms, so far as they are known to us, have necessitated substantial or expensive changes or alterations in the existing protective arrange-' ments, and it is obvious that remote control of the locking devices for doors is useless unless the door or other closure having such locking device be closed before the locking device 'is actuated. While we herein make reference to a vault door as illustrative of a door or other closure for a 1'0- receptacle designed to hold and to protect persons or valuables, we do not intend thereby to limit ourselves to bank vault doors or even to door for lockers within bank vaults, but desire it to be understod that our invention is applicable 15- not only to vault doors and vault locker doors but also to doors for lockerslocated at any desired point, to cash drawers, to thedoors of tellers cages,--doors or gates. giving access to private rooms or compartments, or in fact, as already intimated, to any movable closure of whatever kind or character. By Way of specific example we shall hereinafter make reference to the door of a locker situated within a protected vault, for

example such a locker as is commonly assigned ,3,.

to an individual teller in the bank. Such doors are usually provided with locks, either'combination or key operated, and when the main vault door has been opened, after its controlling time mechanism has run down, the inner locker doors may be opened at any time by the .teller. Thus the latter may be forced by a robberto open the locker door at any time during the working period.

In accordance w1th our present invention we provide a delayed action time lock for control ling the locker door, or as many such doors, cash drawers, gates or the like as may be desired. Preferably the delayed action mechanism is arranged within acasing and disposed within the 0 protected space, for example, the main vault, but

preferably this delayed action mechanism is outside of the locker itself and is designed to run only for a relatively short period, after being set,

for example, fifteen minutes. To keep the lockerdoor looked for such a limited period during. working hours'would not be particularly an'noy&' ing, even'though it might prove unnecessary; although a delay of this length in opening the locker would, in most instances it is believed, be

sufiicient to frustrate the plans of robbers.

'This delayed action time lock is so designed as to prevent manipulation of the usual locking mechanism of the, locker door until the expiration of thepredetermined period of operation,-

V but this delayed action mechanism doesnotstart its period of operation (culminating in the releaSe'of, the door operating mechanism by manl .ual operation) except at theinstance of respon Sible persons. 7 7

Our improved system further: provides that if, r

h during the period of. operation of the delayed 7 actiontime mechanism, 'fonexample; a minute 1 before the expiration of suohjperiod, an attempted robbery should occur, the delayed action-mechanism may be instantly set back to the beginning 7 of its normalperiod of operationby ni'anipulation ofa controller element at a remote point or at any of a plurality of such poihtsgthus pro: viding .that the iull predetermined period of manual actuation.

delay shall run before 'the loc'ker door is free for,

While we here refer to mingle locker iiooras being controlled by this delayed'aotion mechanism) it is to be understoodthat asmany such doors; drawers, gates or the like. as desired may 7 be under the control of a single delayed action mechanism, although if; preferred, separate delayed action mecha'nismsmay be provided for the several doors,- drawers 'or,the like; or'for groups a of suchfdoors ordrawers.

Our improved systemfurthercontemplatesthe j provision of signal circuits :designed to indicate,

forexample, by means :of alamplocated at a centralscontrol. station, such as: a head 'te llersf desk, when any locker door, drawer, gate or the 'like'include'd withinthe'systemis'unlocked; 'As a further feature of protection": We contemplate the control desk where; the resetting controller for the delayed actiontirne mechanism may. also preferably' be located. These rem'otecontrolled lock devices are so designed itl lat noneof the doors, drawers, gates,.etc. included in the system maybe unlocked except by the remotely located central operator, headteller or the like, who may be quartered inia properly protected or guarded compartment and who manipulates the remote locking mechanisms 7 only in'response to-Irequests provision of an individually operable remote-con trolled lock for each locker door, drawer,v gate. or

the likefsuch remote controlled locks beingddesigned for actuation by anaoper'ator' atthe' centralw transmitted by telephone 01 b te appropriate a In accordance V wherein humanivolition is essentialto the actu ation of the locking mechanism, there'is no such a signal from the individual teller, cashier or the like.

with our improved system,

danger of premature unlockingrof the particular space under protection as existswhen the retraction of thebolt-work is wholly a function of mechanical arrangements, and since in accordance with the intendedoperation ofthis system the user of the protectedspace is expectedtoclose and lock the door immediately after each period locking mechanism remains lockedihdefinitely until the wires are repaired andthe flowof cure rent is restoredrfPreferably also the delayed ac tion time mechanism is furnished with an indicator whichgshowsat. any time the extent to whichit has run down, that is to say, the length of timewhich must elapse before the door lock;

' ing mech'anism may be released.

In the accompanying drawingspwe have illus' trated the. general arrangement of our improved protective system, together with details of a'preferred form of delayed action time control mech anism,: but with' the understanding that, these illustrations are merelybyway of example of the broad principle of the invention, and: that the latter'may be embodied in other arrangements 7 of apparatus all within the spirit of the invention} :gas-limited by the appended claims.

In the}accompanying drawings 3 l Fig. 1 is a fragmentary diagrammatic elev'a -tion showing partof a-vault or safe having there- "in a locker, and a control'unit embodying the a 20 present invention;

Fig. 1a isa diagrammatic planview of a cen- "tralcont'rol panel system;

forming a partof our improved Fig. 2 is a fragmentary elevation, to larger scale, 'illustratingtheinner 'side of the door of the control unit; V

Fig. 3 is a diagrammatic elevation showingthe front compartment of the control unity with the a door. open; 7 r t V Fig; 4 is afragrnentary horizontal section sub:

stantially-on the line 4-4 of Fig.3;

. rear compartment of the latter; and V a 1 iFlg.6.;is; adiagrarn illustrating the electrical. wiring circuits of the control unit. I

.Referring to the drawings, ii'igi. lshows byway of example aportion of a-vault or safe S which may-beprotected by means of any desired locki'ingmechanism, forexample atiine look, (not shown) which releasesthebolt-work at the be, ginnin'g'ozf the working pe'riodi Within thevault Fig. 5 is a-diagrammatic elevation, lookingto l ward the front of the controlunit, showing the S there is shown a locker or compartment M,

"representative of any numberof individually protected compartments, saidlocker having walls The{ latter is furnished with. bolt-'workleomprising'one' or more bolts 3,13; etc. which; when. projected into locking posil' and'a door 2.

tion, enteris'ockets 4 in the wall I of the locker. These bolts may be advanced and retracted manually, and maybe locked by'any appropriate means, for example a'combination or' key controlled locking mechanism. 7

' a 'In accordance with the present invention, the 4 bolt 3 has .a notch or recess 5 adapted at times j toreceive a dog Ecarried by a lever l pivoted; at

F at the'inside of th e'cloor 2. The weight of theleverancl dog is such that gravity tends'to cause the dog to enter thefnotch 5 whenever the .latter' is in registry with the'dog. When-'the'dog' is disposed within the notch j5,fit is impossible to 'retr'act the b0ltsf3; 3 etc. by the manuallylac- .tuable handle," even though:the usual looking" mechanism be unlocked.

'The lever l constitutes the armature of an electrom'agnet 8 mounted on the inside of the'doorl.

From the magnet coils, a' wire 9 leads to a snap switch lz mounted .o'n a panel ll; preferably located at a point remote from-the vaultw S; for example; thepanel 'l I maybe at'a central. control station,-.-head"tellers desk; or the like, pref; erably in a protectedgor inaccessible room or 'compartment. 1 The switch I2 is representative of any number of switches,fsuchasthe switches |2 ,3l2 etc, each corresponding to. one locken'i- 2O98809 such as the locker M, or to any other protected cabinet, drawer, gate, shutter or the like, included within the system, and provided with a locking dog, such as the dog 6, or equivalent magnetically actuated device. a i

A Wire I0 leads from the other terminal of the coils of magnet 8 to one end of the secondary I5 of a transformer T (Figs. 5 and 6) and awire I3 leads from the other end of the secondary transformer-winding back to the switch I2. whenever the secondary of: the-transformer is energized, closure of switch I2 permitsflowof current through the magnet 8, thereby retracting the dog 6 from the notch 5 in bolt 3 and allowing the bolt to be manually withdrawn after unlocking of the usual locking devices. However, closure'of switch I2, when the secondary of the transformer T is not energizecthas no effect on the magnet 8 and will not permit the door 2 to be unlocked. The arrangements hereinafter described determine when the secondary of the transformer may is connected by wires I l M to a switch device K (Fig. 1) associated with the locking bolt 3 of the corresponding locker or other protected device. This switch, as illustrated in Fig. 1, comprises normally separated terminals Id I l and the bolt 3 is furnished with an actuating finger i l operative, when the bolt 3 is retracted, to close the switch K and to keep it closed so long as the door 2 remains unlocked. The circuit comprising the wires [4 M receives current from any suitable source and thus, so long as the door 2 is unlocked the lamp I4 is lighted. The operator at the panel I I may thus determine at a glance what doors, drawers, etc. within the protected system are unlocked.

Referring more particularly to Figs. 3, 5- and 6, a pair of lead wires I6 and Ili from any desired source of alternating current, furnish the power necessary for operating the control unit. These leads wires may terminate at a suitable plug, (not shown) if desired, for convenience in installing the control unit at the point of use. As herein illustrated, the control unit U comprises a casing having walls 33, and is adapted to be installed in the vault S outside of thelocker M or other protected device and preferably so that the door C of the unit is exposed to View. When installed in a vault or other protected space, it is desirable to connect the casing of the control unit into the usual alarm system so that any effort to remove the unit bodily or to tammr with it will cause an alarm to sound. However, it will be apparent from the following description that any serious injury to the unit, its removal, or the cutting of the lead wires I6 and IIi leaves the door 2 or other locked element of the system in locked condition.

The lead I6 is preferably connected to a post IIi on an insulated panel P mounted within the casing of the control unit. From' the postv I6 a wire I'I (Figs. 2, 3 and 5) leads to a resilient*con plemental contacts 2i and 22, respectively, carried by flexible tongues 23 and 25 also mounted on the block N. The contact tongue I8 alsocar ries a push rod 'l8 whose free end is disposed in the path of thebolt Bof the locking mechanism L mounted on the inside of the-door C. The door Chas a keyholeZ (Fig. 1) exposed at its outer side, and preferably the locking mechanism L is of a type requiring the sucessive use of a plurality of keys to unlock the door C. v 7

From the tongue 23 a wire 25 (Figs. 2, 3 and 5) leads to a post 26 carried by an insulating panel P disposed'within the casing of the control unit.

jecting from a fiXedvertical partition 32 (Fig. 4.)

dividing the space within the casing 33 of the control unit into a forward compartment 33? and a rear compartment 33 The lever 29 is furnished with an arm carrying an adjustable abutment member 29 for a purpose hereinafter described. The switch tube 28 is provided with threecontacts 34, 35 and 36 and contains a pool of mercury 3'I'adapted, according to the inclination of the switch tube, to connect contacts 35 and 35, or 35 and 34 respectively.

' A wire 38 leads from switch contact 34 to a post 33* carried by panel P, and from this post a wire 38* (Figs. 5 and 6) leads to one end of the primary winding 39 of the transformer T, the latter being mounted within the rear compartment 33* of the control unit. From the other end of the,

primary winding 39, a wire 38 leads to a post 38 carried by the'panel P. The lead wire Ifi is also connected to the post 38 7 A wire 38 branches from the wire 38 and leads to a post 43 forming one terminal of the winding of a synchronous electric motor 65 (Fig. 4) which drives a clock mechanism 4i mounted on the rear side of the partition 32. From the post 43 a'wire 42 leads to one end of the winding of an electromagnet 43, also mounted on the rear side of partition 32. The other end of the winding of this electromagnet is connected by a wire M to a post 45 (Fig. 3) carried by an insulating panel P on the front side of the partition 32. From post 45 a flexible conductor 46 leads to one contact 41 (Fig. 6) of a tilting mercury switch 48. This latter switch comprises a tube, secured to one arm of a lever 44 (Figs. 3 and 6) pivoted on a stub shaft 43 projecting forwardly from the partition 32. The lever M has a short actuating arm 43 for a purpose hereinafter described. The switch tube 48 contains a pool 38 of mercury adapted at times electrically to connect the contact 4? with a second contact' lfl (Fig. 6) A flexible conductor 56 leads from contact 39 to a post 5| carried by panel P and from the post 5I a wire 52 (Fig. 3) leads to the switch tongue 24 (Fig. 2) at the inside of the'door C.

A wire 53 (Fig. 3) also leads from post 5! to a post 54 (Fig. 5) carried by panel P, and to this post is also connected a wire 5 leading to one terminal 55 of a push button switch W (Figs. 1a and 6) at the central control panel ii. 'A wire 55 leads from the other terminal 5'? (Fig. 6) of push button switch W-to .a post 58 on panel P, and this post 58 is connected by a wire 58* to post Hl If desired, a plug 55 (Fig. 5) and 00- operating socket'may be interposed in the circuit comprising the. wires 5t and 56ito facilitate installaticn'of the control unit.

A wire 59 leads from a post 60, forming-theother terminal of the winding of the synchronous clock motor 65,-to a post tl on panel P, and .from

i this post a" flexible 'conductor"iigleadsyto the terminal 36 of swit'ch'zhe. From wire42 a branch wire- 42 .(Figs. 5 and 6) leads toqone or more." lamps 63 (Figs; '3 and 6),p'referably: connected in paralleland mounted in'sockets'supported onzthefront side of the partitionSZ, AwireAZ leads from the lamps 63 'to 'th'e-postfiion the panel P,'.the flexible conductor. 21 leading; from: this post' to the ,central' co'ntaict 35 ofswitch 28, as; V

- ;hand1e. j

above described;

The .mechanism':'of the clock? 4| ywmprises {a suitable frame 6 4."(1F ig5-)" secured'tothe rear sideo'f the partition 32 andhaving bearings for the several rotating parts. The frame alsoiforms a support for the synchronous electric motor 65,

' the latter having a shaft! providedfwith a pinion 61 (Fig. 4) which drives thereducingtrain of its driving, gear Hiandalsofromthe gearflZ which is normally driven by the pinion 68.1 The V lever 69 constitutes the armature of the magnet; 43 above described, and when the latter is .enerw gized,tjthe lever 69 :israisedand the pinion 68 isthe. clockwork mechanism. One pinion 68 in this i train is carried by alever 69-which-is so mounted .20.

on a stub shaft'lfl, carriedby the partition, as to permit the pinion to move bodily'up and down to an extent sufiicient to disengage it from moved out ofmesh with'the gears H and 12,thus

freeing. the latter. from the clock'tr'ain; The gear 1211s fixed to a shaft 13 (Figs. 4 and 5) turningin bearings carried by-the frame 64,

.and at itsrea'r'endis furnished with a lever arm 14 :having-a'contactface l5"'ada-pted, when the 'lever is turned in-a: clockwise direction as viewed one endsecured to the shaft 13, i's so tensioned as atzall times to. tend to' ho1d the shaft and the levers'ji' iandi'lii .positioned'as shown in Fig. 4; 1 and when. the shaft .l3 is turned in a clockwise direction. as viewed-inFig. 5, the spring is placed under further tension; thus strongly tending to turn the'shaft l3 reversely'whenever the shaft is free from the clock mechanism. 1

' At its forward end, shaft 13 carries theshutter 'lflwhich is interposed between the lamps B3-and a serieslof apertures 19.(Figs. land?!) 'in the door C of the controllunih::The arrangementof I the shutter is such that astheishaft 13 slowly turns,'0ne after another or the apertures 19 is uncovered, thus indicating at any time the extent to which theshaft ;has turned... For example, if the clock is to'run for fifteen'minuteslbefore the mechanism is releasedfor unlocking, the apertures l9 maybe spaced to show. one minute intervals of elapsed time after the clock starts.

1 The operation of'our improved protective sys'-.

tem is substantially as. follows, it being assumed at the outset thatthemain vault S is open and thatthe clock mechanism of the controlunit has. "at some time during" the working period. turned the shaft 113 in a clockwisedirection" as viewedin Fig.5 until the contact: surface .15 has-engaged the abutment ZS and thus. tilted theswitch tube 5 28 until-the mercury has: flowed into the left hand, end TOf the tube and completed-a; circuit intweenfthecontacts' 34 and 35.. ..It will alsobe V the lamps 63. j

noted that at the outsetofthe turning of the 1 shaft 13 a'clockwisedirection as above;noted,.

the leverlfi, carried by theishaft1 3, leaves the;

tojtilt the switch 48to'a position such'that'the:

mercury 48*? completes the circuit between the contacts 41 and): ;It may further be assumed: that the door 2'01 the locker'Mjs closed and the.

bolts 3 arid 3 haveib'een projected by the usual a In preparationfor the close of the working arm 44 of the lever 44; thus permittinggr'avity; r

period, authorized persons, having keysto the' lock mechanism. L of the control unit, will so manipulate this 'locking mechanism as to-pro -f ject the bolt B intothe'position shown in Fig;

J2, .thus' causing th'e" contact,;.20 to-engage the contact '22. Atthis Itiinle, as above noted, the contacts-41 and .49 of switch 48 'are 'connected' "and'the contactsf34 and 35 "of the switch 28 are' connected. When the bOllleB isprojected so as-to causecontactslll and' ZZ tQengage, a circuit-is completed, beginning at lead jit and including the wires 38, 38; 1:42, the windings of the magnetf43; the wire 44, the switch 48, the wirel 52, the contacts 22 and; Zlland. the wire ll leading back to;-the lead wire 16; 'Thisenergizes the i magnet 43, therebyliftingthe lever 69 and disen gagingthepinion Gil-from the. gears H: and i2; As soon as the gear 12 is releasedthe spring. 17

turns the gear 12 in a counterclockwise direction, as viewed in Fig. 5;, until theflever arm 16 car} ried by shaft. 13 engages arm 4490f leverTMP,

thereby, tilting the switch '48 i and breaking-1 the.

same-time the arm 14 of lever 'l3 leaves abutment circuit between thecontacts 4'! eee.1s e-., Atthe 29 thus allowing the switch 28 to dI'Opf and assume the positionshownin Fig; 5;; wherein. the

mercury 3Tconnectscontacts 35 and 35'; This is the'position of the parts during the period :when; the vaultis closed forthe night, it being noted that the tilting of the switch 48 breaks thecircuit through the coilsof the. magnet'43 so that no current is flowingduring the periodwhen thevault proper is closed.. In this position switch/28 is supported by a stop 28 At the begining-of the "working period, after.

. thevaultS is opened, the authorized personshav ing the keys to' the lock 'L-will manipulate this look so as to retractthe bolt B, thus permitting thetongue i 8 to spring to -the left as viewed ,in

Fig. 2 until thecontacts 19 and fl are in en-' gagement. At. this time, as above noted, the contacts 41 and 49of switch 48 are disconnected, while the contacts Hand 36 ofiswitch. 28 are connected. {As soonas the contacts l9 and 2l :of the door-switch are connected, circuits are 1 formed beginning at lead [6. and extending,

through the wires38 '38? to the terminal 49 of the clock mechanism and thencefroin the terminalzfill of the: elock -'mechanism through ,the wire 59to the. post 5|;thencef through the-wire 62' to the switch. terminal 36, thence throu h a the wire 21 to the post26, from the latter through;

the wire 25 toithetongue 23, thence by way of,

the contactsil' and i9 to the tongue I8, and

thence byjthe wire me the lead; 1 6, thus starting '1 the clock mechanism into "operation. At the sameti neanothercircuit is completed, beginning cludin'g the (wire "42, the; wire 42 the lamp. as,

the'wire 42 jleadingtothe'post 26, and thence byway of the wire '25.to*the door switch .comij prising the contacts. l9 and- 2|, and thence by way of wire I! back to the lead I6, thus lighting at. the post' AQ- of .thGlQlOCk .1118011341115111.andill-I I The clock being 'set into motion drives the shaft 13 slowly in a clockwise direction as viewed in Fig. 5, and, as the shaft'turns, the shutter'lil uncovers the apertures l one after another, therebyindicating the number of minutes which has elapsed since the clock started. Immediately on starting of the shaft 53 the lever 55 leaves the arm 55 or. the lever t i permitting thealatter to drop so' as to connect the terminals =3? and 49 of the switch When the shaft has turned substantially 180, the contact surface engages abutment 29 and thus tilts the switch 28 so as to connect the contacts 55 and 35 while breaking the contact between'the contacts 35 and 36.

t In thus connecting the contacts 3% and 35, a circuit is formed, beginning at 53 and extending by way of the wire 35 to the primary 39 of the transformer T, thence by means of the wire 38 to the post 38 thence by the wire 35 to the contact 35 of the switch 28, then by way of the contact 35 and the wire 22 to the post 26, thence through the wire to the door switch and through the contacts 2! and I9 back through the wire ii to the lead 55. The transformer is thus energized and the apparatus is now in readiness for control by an operator at thecentral control panel I? whenever it is desired.

For example, if with the apparatus in this condition the individual teller to whom the locker M is assigned desires to obtain access to this locker, he will signal the head teller or control operator at the control panel H and the latter will actuate the corresponding switch l2 so as to complete the circuit which includes the secondary l5'of the transformer. Closing this circuit' euerigizes the magnet 53 and thus lifts the dog 6 out of the notch 5 in the bolt 3 and holds the dog lifted so long as the switch i2 continues to close the secondary transformer circuit. The individual teller may now manipulate the lock mechanism of the door 2 so as to retract the bolts 3, 3 and open the door. Immediately the bolts. 3. are retracted, the circuit. through the lamp i4 is completed and the operator at the central control panel ii is apprised of the fact that the locker M is unlocked. This lamp con.- tinues to burn so long as the bolts 3 are retracted, even though the door 2 may be closed.

In accordance with the intended operation of the system, the teller to whom the locker M is assigned will, immediately after he is through working at the locker, close the door 2 and project the bolts 5 into lock ng position. If he fails to do this, the central control operator will note such failure by reason of the continued burning of the lamp Hi, and may signal the teller to lock the door 2/ As soon as the control operator notes that the lamp M- has gone out, he will manipulate the switch so as to break the circuit through the magnet't, thus allowing the dog 5 to drop and thus prevent local retraction of bolt 3.

If, when the clock mechanism has turned the shaft 13 either partly or wholly through the intended angle necessary to release the locking mechanism, any emergency should arise such as to make it undesirable to have the locking mechanism released, the control operator at the panel II will press the switch button W, thus completing the circuit beginning at the lead i6 and extending through the wires 55*, 56, the contacts 51 and 55 of the switch W, the wire 54*, the 'wire 53, the terminals of switch 48, the wire 46,

the wire 44, the coils of magnet 43, the wire 42, the wires 38 and 38, back to the lead wire 16*.

'cept by cooperationof the other.

Thiscompletesithe@circuit through the magnet 43, raisesthelever 69, disengages the pinion 68 from'the gears I1 and 12 and permits spring 11 to' reverse: the shaft 13 and bring it back to its original positionincwhich thecircuit is broken at the switch 48 and-is alsobroken between the terminals 34- and 35 of the switch 28.

'The delayed action timing-mechanism comprising the clock device 4 I *mustthus start over-again at the beginning of its fifteen-minute or other predetermined period and must complete this entire period'before'the locking mechanism is again in releasable condition, and as often as the button at switchW is depressed the clock mechanism is oblig'ed to initiate a. new period of'operation. It is thus possible at any time in the day for 'the control operator at the central panel II to set the clockimechanism of: the-control unit at the starting position in which all of the locking dogs 6 of 'the various protected devices such as lockers, drawers, etc. are in locking'position and can not be relea'sedun-til the completion of the delayed a locking dog for thebolt, motor means for retracting the locking dog; 'atiming mechanism operative after a predetermined interval of time to make available energy foroperating said motormeans, a manually operable'device operative to set said timing mechanism into operation, an

outer: protective enclosure for the locker, and

means exterior to said protective enclosure operative'to "determine the application of energy for drivin'g'said motor means. 7 f

2. A protective" system comprising a door, boltwork for holdingthe door closed, and locking.

meansfor the bolt-work comprising independent moving parts,'means carried b ythe doorfor moving one'of'said parts, and control means for actuator remote from the door, said timing mechanism and actuator being so interdependent that either is ineffective to move said second part ex- -3. A protective system comprising a plurality of independent closures, each provided with boltworkfor holding it closed, interdependent locking means for the bolt-work of each closure, each said locking means including a plurality of independent'movable partseach of which must be movedto release the bolt-work, manually actuable means adjacent to e achof the respective locking means operative to move one of said parts,

and an actuator corresponding to each of said closures, respectively, arranged at a; control station remote from the closures, each of said actuators beingoperative at times to initiate the movement of the second of the moving parts of the corresponding locking means.

4. A protective system comprising a plurality of independent closures, each provided with boltwork for holding it closed, locking means for the bolt-work of each closure, each said locking means including a plurality of independent movr .c l

, fable, parts each of which mustjbeiiioved to re lease the bolt-work; manually iactuahlemeans; 'adjacent-jto eachof the respective locking meansf operative to move'fone,of said parts, a manually operable' actuator corresponding to eachf 'of said V lease the lock means from time control, thereby I to izpermit the closure fto be unlocked; gspring' to actuateiisaid disconnecting meansg closures, respectively, iarrangediat acontrol rsta tion remote fromthejclosure's, each of said actuators being 1 operative at 'times to initiate "the movement of the second of the moving parts of 'th correspondinglocking means; and a1=time Y i mechanism operative-to determine'the period of.. time within which any of said actuatorsmayinitiate'movement of the second ofthe'moving,"

partsof the respectivelocking mechanisms};

5. Apro'tectiVe system comprising a plu a Y of independent closures, each'provided with boltwork for holding itclosed, loclring means for'the. bolt-work of eachclosure, each said locking means:

including a plurality l of 7 independent movable parts each ofr which must be moved to release the bolt-work, manually actuable' meanspadja cent to each of the respective lockingflmeans" p:

operative'to. determine the periodofjtime within which any of said actuators may initiate;movement of'the second ofthetmoving 'parts oflthe respective locking mechanisms," and means at the v control station operative at "will to reset the time ing: mechanism to its starting position.

6. :In a protective system of theiclass I described comprising a protected space; a closure arranged I within the protected space-locking meansior the closure, a lock controlling :timee mechanism also within the protected: space, said time? mechanism comprising a rotary shaft a motor; a trainl of mechanism normally transmitting motion: from the'motor to the shaft whereby to turnsaid shaft I through ajpredetermined angle', apjart carried by the shaft 1 operative at the end of a;-prel;le termined anglev of movement o f the jshaftfi to; {remeans tending to turn the; shaft lin opposition to the motor, disconnecting means operativeto break the train of connections-between th'epmotor V and the shaft-thereby to permit'thespring to' reverse 1 the shaft, and-means comprising, a; 'part atzwill;

remote from the protected space operative i Q 7. QIn' -a protective system of theclass comprising a -burglar-resistant vault, a: closure other of said parts, and a controlunit compris 'ing a: casing which encloses time mechanism, key. controlled meanswithin the casing-for startfoperative at the end of a predetermined period v of operation of the timelmechanism to supply erative to move one of said'parts, a manuall'yopierable" actuator corresponding to each of said closures, respectively, arranged= at a control; sta-l 'tion remote from the closures,"each of said'actuatorsbeing operative at times to initiate themovement of thesecond' of the "mQVingQpZltS ofv the 7 corresponding locking means, a "timemechanism' electromagnetic motor means, and means; also means from timecontrol,'thereby to permitfthe closure to be unlocked, and means including an f actuatorfremote from the protected "spacef op- 'store-the'sh'aftto starting position;

' erative'to disconnect the shaft from'fthe motor;

therebytto permit; the resetting element tore-f 7 '78 In aprotective system of the class describedhaving a closure provided with bolt-work for holding itfclosed and with lockmea'ns' for the;

bolt-worhsaidlock means comprising independent movable parts, means for moving 'onepf said parts, electromagnetic means for :moving the ing the timemechani sm into action, an electric switch withinlthe controlunit casing, said switch,

being under control of the time-mechanism'and electrical energy to a; circuit'in'cluding said elec-g remote from the closure operative to close said 9. A protective" system comprising a locker having a movable closure, a manually actuable bolt for the closure, a'loclring dog f or the bolt, elec tromagneticf motor means for releasing the dog,

timing mechanism normallyljoperative after a' predeterminedinterval of time to closeramelec: trical'ci'rcuitconstructed andarranged to supply energytontheelectromagnetic motor means, manually operable mean'siadjacent to the closure op erativeto set the timing mechanism into action,

an outer protective enclosure for the lockenQ 'meanscext'eriorjto said protective enclosure oper-', Jative to initiatejthe supply o'fenergyto said elec-' tromagnetic moron means, and means" also; outside of the protective enclo'sure 'operativeatwill I andas many times inusuccession as .de'sired'to reset the timing mechanism tothe starting point; 1 r

10 A protective. syste'mQcomprising a locker V having amovableclosureja manually actuable 7 bolt forthe closure and manually actuablelock-fi V ing'means for 'the .bolt;'an auxiliaryflocking de t vicefor the bolt,relectrcmagnetic "means for-re 7 leasing said'a'uxiliary locking device; timing mechanism normally operative after-aipredeter "mined iinterval ofti me'to-close an electrical cirr, cuit constructed and} arranged to supply energy to; said electromagnetic" 'mo'to'r means, manually operable means adjacentto the closure operative to} set the timing mechanism into operation,

means providing aprotectedspace remote from ,the locker, means within said protectedispaceom" erative to initiate the supply of energy tor said within said protected.space' operative at willto 

